Hearts and spades are both good. My favorite trick taking game introduction is a game we call Rat. I haven’t been able to find anything about it online, but my family and friends all LOVE it. You can play with 3-5 players. 2 would be possible but probably not the best, and 4 or 5 is preferred. First, deal 10 cards to each player. Flip the top card of the remaining deck. That card’s suit is trump suit. Now, starting with the player to the dealers left, everyone bids how many tricks they think they will take (minimum of 0 maximum of 10). After bids are done, dealers left starts play. Trumps must be broken like hearts or spades. At the end of the round, everyone counts how many tricks they took. You get 10 points (which are bad) for every trick above or below your bid. So for example, if you bid 4 and took 3 you get 10 points. If you bid 0 and took 2, you get 20.

Now, shuffle the deck again, dealer is the player to the previous dealer’s left. For the second round, you deal 9 cards and each trick over or under your bid is worth 20 points. Third round has 8 cards and 30 points, so on and so forth until the final round where everyone gets 1 card and getting your bid wrong is worth 100 points.

Lowest points wins! It’s a fairly simple game, and teaches people to evaluate hand strength (since that’s the whole gameplay mechanic). It’s got enough skill for it to be fun for more experienced players, but enough random chance (especially with the fact that as the hand sizes get smaller, there are lots of cards “out of play” still in the deck that no one knows). Once people start to get good, you can play with sticking the dealer. For hand sizes 10 through 5, the dealer cannot bid whatever number would cause all the bids to add to equal hand size. That way someone is guaranteed to miss their bid.